Draft-rigging backstop



June l2, 1923.`

D. s. BARRows DRAFT RIGGING BACKSTOP Filed Oct. 24. 1921 2 Sheets-Sheet l D. S. BARROWS 'DRAFT RIGGING BACKSTOP 51402;, {ma/94m?? Patented June l2, 1923.

NUN STATES vPa'rlaN'r DONALD S. BARROWS, OF ROCHESTER, NEW YORK, ASSIGNOR TO THE T. H. SYMINGTON COMPANY, OF NEW YORK, N. Y.,VA CORPORATION OF DELAWARE.

DRAFT-RIGGING BACKSTOP.

Application mea october 24, 1921. serial Nu. 509,800.

To all whom it may concern Be it known that I, DONALD S. BARRows,

a citizen of the United States, residing at Rochester, in the county of Monroeand State of New York, have invented certain new and useful Improvements in Draft- Riggin Backstops; and I do hereby declare the fol owing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it ap ertains to make and use the same.

y invention relates to draft rigging backstops which are designed to be secured between the center sills or` draft sills of a railway car to provide means for transmitting to the car underframing the buiiing shocks to which draft rigging mechanism is subjected in service.

The principal object of the invention is to produce a backstop of great strength per unit of weight which may be applied to the car sills with a minimum expenditure of labor and in which shrinkage cracks and similar manufacturing defects are not liable to occur.

The principal feature of the invention, generally stated, consists in constructing a backstop with side walls which are adapted to be secured to spaced car sills and are united at their forward ends by an vend wall forming an abutment for a movable part of the draft rigging, a centrally disposed longitudinally extending horizontal web being united to the upper portion of said end wall and extending rearwardly therefrom, and longitudinally extending transversely inclined webs bein disposed below said horizontal web and being united at their forward ends to said end wall.

A further feature of the invention consists in forming a backstop with'fisidewalls which are united by a forwardendfwall formino' an abutment for a ymovablepart of the draft rigging, longitudinally extending downwardly divergent webs being united at their forward ends to said end wall, and a plurality of longitudinally spaced. vertical webs being employed for connecting said side walls to the said divergent web.

A still further feature of the invention consists in providin a backstop with side walls, a forward en wall uniting said side walls and adapted to form an abutment .for a movable part of the draft rigging, a horizontallydisposed web connectlng the lower portions of the said side walls, and longitudinally extending downward] Webs uniting said end wall an zontally disposed web.

Other features of the invention concerned with special details of construction and their relationswill hereinafter ap ear.

In the drawings illustrating t e invention, the scope whereof is polnted out in the claims Figure 1 is a plan view of a backstop embodying the invention showing its asdivergent said horisembled relation to a' portion of the car i underframeand to a draft rigging mechanism.

Figure 2 is a detail plan view of the backstop.

Figure 3 backstop.

Figure 4 is a vertical sectional view of the backstop, taken to one side of the central web.

Figure 5 is a transverse section on the line 5 5, Fig. 4.

Figure 6 1s a section on the line 6-6, Fig. 4.

The draft rigging l with which the backstop cooperates and the spaced. car sills 2 between and to -which `the backstop is secured may be of any suitable form. In the well known type of draft rigging that is illustrated in the drawings the rear end of the draft yoke 3 is the movable part of the draft rig ing which is adapted to comd municate bu ng shocks to the backstep, but it is to be understood that this special form of draft rig ing is merely illustrative and is not disclose for the purpose of limitlis a rear end elevation of the ing the invention to use in conjunctiontherewith.

rPhe backstop is formed with longitudinally extending side walls l which are preferably provided with two vertically spaced parallel rows of openings 5 for receiving rivets 6 whereby the structure may be firmly secured to the sills of the car. At their forward ends the side walls 4 are united b a vertical transversely extending end welll adapted to form an abutment for the movable yoke 3 of the draft rigging.

United to the upper part of the forward end wall 7 and extendin rearwardly therefrom to the centrally d1sposed hollow ost 8 forming the king bolt o ening with w ich backstops are customari y provided, isa centrally disposed horizontal web 9. Below said horizontal web 9 and preferably integrally united thereto, are longitudinally extending transversely inclined webs 10 which diverge downwardly and are connected to the lower portions of the side walls 4 of the backstop by means of a horizontally disposed web 11. As shown in Figs. 4 and 6, the lower horizontal web 11 may be provided with suitable openings 12 for the purpose of coring the space between the downwardly divergent webs 10.

The transversely inclined divergent webs 10 are also united to the side walls 4 by means of a plurality of longitudinally spaced transversely extending vertical webs 13 which preferably are united to the bottom wall or web 11 of the casting and which may 'conveniently be of less height than the end wall 7. The divergent webs 10 may be advantageously united by a transverse vertical web 14 integrally connected to the lower wall 11 of the backstop. The inclined webs l0 may be integrally connected to the horizontal web 9 through the medium of a centrally disposed vertical web 15.

When the hollow post 8 is employed it is preferred to brace it transversely by vertical webs 16 integrally uniting it to the side walls 4 and to brace it longitudinally by means of a rearwardly extending vertical web 17 connecting it with the lower wall 11 of the backstop.

lt will be perceived that by my invention the met-al is disposed in a manner to give great strength to the structure while at the same time ample space is afforded for conveniently driving rivets for attaching the backstop to the spaced sills 2 of the ear.

l claim 1. A draft rigging backstop comprising side walls adapted t0 be secured to spaced car sills, a forward end wall united to said Side walls and adapted to form an abutment for a movable part of the draft rigging, a horizontally disposed web connecting the lowerportions of said side walls, and downwardly divergent longitudinally extending webs uniting said end wall and said horizontally disposed web.

2. A draft rigging backstop comprising side walls adapte-d to be secured to spaced car sills, a forward endpwall united to said side walls and adapted to form an abutment for a movable part of the draft rigging, transversely inclined webs united to said end wall and extending rearwardly therefrom, and a plurality of longitudinally spaced transversely extending webs united to said inclined webs and to said side walls.

3. A draft rigging backstop comprising side walls adapted to be secured to spaced car sills, a forward end wall united to said side walls and adapted to form an abutment for a movable part of the draft rigging,

Meana longitudinally extending downwardly divergent webs united to said end Wall, and a plurality of longitudinally spaced vertical webs connecting said side walls to said divergent webs.

4. A draft rigging backstop comprising side walls adapted to be secured to spaced car sills, a forward end wall united to said side walls and adapted to form an abutment for a movable part of the draft riggin a centrally disposed longitudinally exten ing horizontal web united to the upper portion of said end wall and extending rearwardly therefrom, and longitudinally extending transversely inclined webs disposed below said horizontal web and united at their for- 'ward ends to said end wall.

5. A draft rigging backstop comprisin side walls adapted to be secured to space car sills, a forward end Wall united to said side walls and adapted to form an abutment for a movable part of the draft rigging, a centrally disposed web unitedto the upper portion of said end wall and extending rearwardly therefrom between said side walls, and transversely inclined webs connect/ed to and diverging downwardly from said centrally disposed web and united at their forward ends to said end wall. n

6, A draft rigging backstop comprising side walls adapted to be secured to spaced car sills, a forward end wall united to said side walls and adapted to form an abutment for a movable part of the draft rigging, downwardly divergent transversely inclined webs united at their forward ends to said end wall, a centrally disposed web united to the upper portion of said end wall and extending rearwardly therefrom between said side walls, and transversely extending webs connecting said centrally disposed web and said divergent webs to said side walls.

7. A draft rigging backstop comprising side walls adapted to be secured to spaced car sills, a forward end wall uniting said side walls and adapted to form an abutment for a movable part of the draft rigging, a plurality of connected centrally disposed downwardly inclined webs, anda transverse web extending between and uniting said inclined webs.

8. A draft rigging backstop comprising side walls adapted to be secured to spaced car sills, a forward end wall uniting said sidewalls land adapted to form an abutment fora movable part of the draft rigging, inclined webs united to said end wall and extending rearwardly therefrom between said side walls, longitudinally spaced transversely extending webs connecting said inclined webs to said side walls, and a transverse web extending between and connecting said inclined webs.

9. A draft rigging backstop comprisin side walls adapted to be secured to space imanes l y V i' sills a forward wall vuniting said lng' said centrally disposed web and said side walls and adapted to forman abutment inclined webs to said side walls, a trans f for a. movable part of the draft rigging, a versely extending web disposed between and i centrally disposed web united to the upper connectin said inclined webs, and a hori- '5 portion of said end wall and extending rearzontally i '.wardly therefrom between said side walls, clined webs to the lower portions of said side inclined webs unitedt their forward ends walls.

to said end wall and extending rearwardly In testimony whereof I ex my signature. 'between said side walls, lo udinally b 10 spaced transversely extending we connect i DONALD S. BARROWS.

sposed web connecting said in- 145 

